Hola, and Hello.
My landscaper speaks English, but many on his crew speak only Spanish. I tried to get them to install the Rachio app, but they tried to use it on my phone and said it was too hard in English. Can you please make a Spanish version of the app (their crew is mostly Android, but at least one guy has an iPhone).
As a bonus, it’s better for your developers to externalize strings, so they’ll be writing a higher-quality application and improving their craftsmanship 
Muchas gracias,
David